Measurement of $\boldmath {B_s^0}$ mixing parameters from the flavor-tagged decay

Details Measurement of $\boldmath {B_s^0}$ mixing parameters from the flavor-tagged decay Measurement of $\boldmath {B_s^0}$ mixing parameters from the flavor-tagged decay

2008-02-15

arxiv.org/abs/0802.2255v1

Phys.Rev.Lett.101:241801,2008

Physics

High Energy Physics

High Energy Physics - Experiment

7 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.101.241801

From an analysis of the flavor-tagged decay \bsdec we obtain the width difference between the $B_s^0$ light and heavy mass eigenstates, $\Delta \Gamma_s \equiv \Gamma_L - \Gamma_H = 0.19 \pm 0.07 {\rm (stat)}\thinspace ^{+0.02}_{-0.01} {\rm (syst)}$ ps$^{-1}$, and the CP-violating phase, $\phi_{s} =-0.57 ^{+0.24}_{-0.30} {\rm (stat)}\thinspace ^{+0.07}_{-0.02} {\rm (syst)}$. The allowed 90% C.L. intervals of $\Delta \Gamma_s$ and $\phi_s$ are $0.06 <\Delta \Gamma_s <0.30$ ps$^{-1}$ and $-1.20 <\phi_s < 0.06$, respectively. The data sample corresponds to an integrated luminosity of 2.8 fb$^{-1}$ accumulated with the D0 detector at the Fermilab Tevatron collider.

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